Discharging smoke hood of industrial silicon smelting furnace

Abstract

The utility model discloses an industrial silicon smelting furnace discharge smoke hood which comprises a discharge smoke hood body, a fireproof spraying lining and a clamp, the shape of the fireproof spraying lining is matched with the internal shape of the discharge smoke hood body, and the fireproof spraying lining is movably arranged in the discharge smoke hood body. The clamp comprises a plurality of clamps, a limiting baffle and a clamping plate, the clamps are U-shaped, the clamps sleeve the bottom of the side wall of the discharge smoke hood, the clamps are fixed on the side wall of the discharge smoke hood through bolts, a groove is formed in one side, close to the fireproof spraying lining, of each clamp, the clamping plate is rotatably arranged in the groove, the top of the clamping plate is movably arranged in the groove, and the limiting baffle is arranged on the limiting baffle. The bottom of the clamping plate movably abuts against a limiting baffle fixed to the bottom of the clamp. The limiting baffle is in threaded connection with a limiting bolt. The top of the clamping plate movably abuts against the bottom of the fireproof spraying lining. The method has the advantages that the fireproof spraying material is prefabricated into the fireproof spraying lining, spraying is avoided, waste is avoided, the wall thickness is uniform, and the fireproof and heat insulation effects are improved. And the fixture realizes convenient installation of the fireproof spraying lining.

Description

Technical fields:

[0001] This utility model relates to the field of metallurgical protection, specifically to a fume hood for an industrial silicon smelting furnace. Background technology:

[0002] To prevent flue gas from escaping during the production process of industrial silicon smelting furnaces and to ensure effective dust removal, a fume hood is installed above the furnace outlet area. Due to the high temperature of molten silicon, the inside of traditional fume hoods needs to be coated with refractory paint. Existing spraying technology involves multiple coats inside the fume hood using a spraying machine, which is very inefficient. Because of the reverse spraying method, a significant amount of paint flows out and is wasted, resulting in a paint utilization rate of less than 50%. Furthermore, the flow causes uneven paint thickness, poor refractory and heat insulation effects, and often leads to burn-through in some areas of the fume hood. At the same time, the spraying process also causes serious pollution to the surrounding furnace body and ladle track environment. Utility model content:

[0003] The purpose of this utility model is to provide a fume hood for an industrial silicon smelting furnace.

[0004] This utility model is implemented by the following technical solution:

[0005] An industrial silicon smelting furnace outlet fume hood includes an outlet fume hood, a fireproof sprayed lining, and a clamp. The shape of the fireproof sprayed lining matches the internal shape of the outlet fume hood, and the fireproof sprayed lining is movable inside the outlet fume hood.

[0006] The clamp includes a clamp, a limiting baffle, and a clamping plate. There are multiple clamps, and they are U-shaped. The clamps are fitted onto the bottom of the side wall of the furnace hood. The clamps are fixed to the side wall of the furnace hood by bolts. A groove is provided on the side of the clamp near the fireproof spray lining. The clamping plate is rotatably arranged in the groove. The top of the clamping plate is movably placed in the groove. The bottom of the clamping plate movably abuts against the limiting baffle fixed to the bottom of the clamp. A limiting bolt is screwed onto the limiting baffle. The end of the limiting bolt movably abuts against the bottom of the clamping plate.

[0007] The top of the card plate is movable against the bottom of the fireproof sprayed lining.

[0008] Preferably, the fire-retardant spray lining is made by shaping and drying a fire-resistant spray coating.

[0009] Preferably, the card plate includes a pair of side plates, an arc-shaped plate is integrally formed and fixed between one end of the two side plates, a stop bar is fixed between the other ends of the two side plates, and a rotating shaft that is rotatably connected to the inner wall of the groove is fixed between the two side plates.

[0010] Preferably, it also includes a protective cover and an L-shaped hook. The L-shaped hook is obliquely fixed to the bottom of the limiting baffle. The protective cover is in the shape of an inverted trapezoid and has a partition fixed inside. The partition has a through hole. The protective cover is placed below the clamp, the limiting baffle, and the card plate by being fitted onto the L-shaped hook through the through hole.

[0011] The advantages of this utility model are: the fireproof spray coating is prefabricated into a fireproof spray lining and placed directly inside the furnace fume hood, replacing on-site spraying, improving efficiency, eliminating waste caused by spraying, increasing the utilization rate of the spray coating, the prefabricated fireproof spray lining has a uniform wall thickness, improving fire resistance and heat insulation effect, and avoiding the frequent occurrence of local fume hood leaks; at the same time, the absence of spraying also reduces environmental pollution.

[0012] The clamps enable quick and easy installation of fire-retardant spray linings inside the furnace fume hood, improving efficiency and reducing labor intensity. Attached image description:

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 yes Figure 1 A magnified view of part A in the diagram;

[0016] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the middle card plate structure;

[0017] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the L-shaped hook structure;

[0018] Figure 5 This is a schematic diagram of the utility model in use;

[0019] Figure 6 yes Figure 5 A magnified view of part B in the diagram.

[0020] In the diagram: 1. Furnace hood, 2. Fireproof spray lining, 3. Clamp, 4. Limiting baffle, 5. Clamping plate, 6.1. Side plate, 6.2. Arc plate, 6.3. Support rod, 6.4. Rotating shaft, 7. Groove, 8. Limiting bolt, 9. Protective cover, 10. L-shaped hook, 11. Partition, 12. Through hole. Detailed implementation method:

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-6 As shown, an industrial silicon smelting furnace exhaust hood includes an exhaust hood 1, a fireproof sprayed lining 2, and a clamp 3. The shape of the fireproof sprayed lining 2 matches the internal shape of the exhaust hood 1, and the fireproof sprayed lining 2 is movable inside the exhaust hood 1.

[0023] The clamp 3 includes a clamp 4, a limiting baffle 5, and a clamping plate 6. There are multiple clamps 4, which are U-shaped. The clamps 4 are fitted onto the bottom of the side wall of the exhaust hood 1. Multiple clamps 4 can be arranged at intervals along the side wall of the exhaust hood 1. The clamps 4 are fixed to the side wall of the exhaust hood 1 by bolts. A groove 7 is provided on the side of the clamp 4 near the fireproof spray lining 2. The clamping plate 6 is rotatably installed in the groove 7. The top of the clamping plate 6 is movably placed in the groove 7, and the bottom of the clamping plate 6 movably abuts against the limiting baffle 5 fixed to the bottom of the clamp 4. A limiting bolt 8 is screwed onto the limiting baffle 5, and the end of the limiting bolt 8 movably abuts against the bottom of the clamping plate 6.

[0024] The top of the pallet 6 moves to abut the bottom of the fireproof sprayed liner 2.

[0025] The clamping plate 6 can be rotated into two states. One is a tilted state formed naturally by gravity, with the top of the clamping plate 6 tilted towards the fireproof sprayed lining 2. At this time, the bottom of the clamping plate 6 abuts against the limiting baffle 5, and the top of the clamping plate 6 lifts the fireproof sprayed lining 2, providing support for the fireproof sprayed lining 2 so that the fireproof sprayed lining 2 can be installed in the exhaust hood 1. The other state is formed by manually rotating or rotating the limiting bolt 8, causing the clamping plate 6 to rotate into the groove 7, so that the clamping plate 6 avoids the fireproof sprayed lining 2. At this time, a new fireproof sprayed lining 2 can be installed in the exhaust hood 1, or the old or damaged fireproof sprayed lining 2 can be removed from the exhaust hood 1.

[0026] The fireproof sprayed lining 2 is made by shaping and drying refractory spray coating. It is formed by spraying multiple times in the mold and waiting for the refractory spray coating to shape and dry.

[0027] The card plate 6 includes a pair of side plates 6.1. An arc-shaped plate 6.2 is integrally formed and fixed between one end of the two side plates 6.1. A stop rod 6.3 is fixed between the other ends of the two side plates 6.1. A rotating shaft 6.4 is fixed between the two side plates 6.1 and is rotatably connected to the inner wall of the groove 7.

[0028] The curved plate 6.2 is located at the top of the card plate 6. The curved surface facilitates the movement of the fireproof spray lining 2 in and out. The abutment 6.3 is located at the bottom of the card plate 6.

[0029] It also includes a protective cover 9 and an L-shaped hook 10. The L-shaped hook 10 is fixed at an angle to the bottom of the limiting baffle 5. The protective cover 9 is in the shape of an inverted trapezoid and has a partition 11 fixed inside. The partition 11 has a through hole 12. The protective cover 9 is placed under the clamp 4, the limiting baffle 5, and the card plate 6 by being fitted onto the L-shaped hook 10 through the through hole 12.

[0030] The protective cover 9 can be made of high temperature resistant material. The protective cover 9 is fitted onto the L-shaped hook 10 through the through hole 12, so that the protective cover 9 protects the lower part of the clamp 4, the limiting baffle 5, and the clamping plate 6, reducing the long-term impact of flue gas on the clamp 4, the limiting baffle 5, and the clamping plate 6, and reducing the adhesion of more silicon-containing particles in the flue gas to the clamp 4, the limiting baffle 5, and the clamping plate 6.

[0031] Working principle: When using this utility model, firstly, a mold matching the internal structure of the furnace fume hood 1 is used to spray refractory spray paint multiple times inside the mold. After the refractory spray paint is shaped and dried, a fireproof spray lining 2 is formed and then demolded for use.

[0032] Then, push the fireproof sprayed lining 2 upward into the exhaust hood 1. At the same time, the side contact plate 6 rotates to the groove 7, forming a vertical state. The plate 6 avoids the fireproof sprayed lining 2 and naturally forms an inclined state due to gravity. The top of the plate 6 is inclined to the side of the fireproof sprayed lining 2. At this time, the bottom of the plate 6 abuts against the limiting baffle 5, and the top of the plate 6 lifts the fireproof sprayed lining 2, providing support for the fireproof sprayed lining 2, so that the fireproof sprayed lining 2 is installed in the exhaust hood 1.

[0033] Finally, install the protective cover 9, which is placed under the clamp 4, the limit baffle 5, and the card plate 6 by fitting it onto the L-shaped hook 10 through the through hole 12.

[0034] The damaged fireproof spray liner 2 can be replaced manually or by rotating the limiting bolt 8, pushing the clamping plate 6 to rotate into the groove 7, forming a vertical position. The clamping plate 6 avoids the fireproof spray liner 2, allowing the old or damaged fireproof spray liner 2 to be taken out downward from the furnace fume hood 1.

[0035] Advantages: The fire-retardant spray coating is prefabricated into a fire-retardant spray lining 2, which can be directly placed inside the furnace fume hood 1, replacing on-site spraying, improving efficiency, and eliminating the waste caused by spraying, thus increasing the utilization rate of the spray coating. The prefabricated fire-retardant spray lining 2 has a uniform wall thickness, improving fire resistance and heat insulation, and avoiding the frequent occurrence of localized fume hood leaks. At the same time, the absence of spraying also reduces environmental pollution.

[0036] The clamp 3 enables the quick and convenient installation of the fireproof spray lining 2 inside the furnace fume hood 1, improving efficiency and reducing labor intensity.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fume hood for an industrial silicon smelting furnace, comprising a fume hood, characterized in that The utility model provides a kind of fireproof spraying inner lining, fixture, the shape of the fireproof spraying inner lining matches the internal shape of the smoke hood of furnace, the fireproof spraying inner lining is moved to the inside of the smoke hood of furnace; The fixture includes a plurality of clamps, a limiting baffle and a clamping plate. The clamps are U-shaped and are sleeved on the bottom of the sidewall of the smoke hood of furnace. The clamps are fixed on the sidewall of the smoke hood of furnace by bolts. The clamps are provided with grooves on the side close to the fireproof spraying inner lining. The clamping plate is rotatably arranged in the groove. The top of the clamping plate is movably arranged in the groove. The bottom of the clamping plate is movably abutted against the limiting baffle fixed on the bottom of the clamp. The limiting baffle is screwed with a limiting bolt. The end of the limiting bolt is movably abutted against the bottom of the clamping plate. The top of the clamping plate is movably abutted against the bottom of the fireproof spraying inner lining.

2. The industrial silicon smelting furnace tapping fume hood according to claim 1, characterized in that: The fireproof spraying inner lining is made of refractory spraying material.

3. The industrial silicon smelting furnace tapping fume hood according to claim 2, characterized in that: The clamping plate includes a pair of side plates. An arc-shaped plate is integrally formed and fixed between one end of the two side plates. A resisting rod is fixed between the other end of the two side plates. A rotating shaft is fixed between the two side plates and is rotatably connected with the inner wall of the groove.

4. The industrial silicon smelting furnace tapping fume hood according to claim 3, characterized in that: The utility model further includes a protective cover and an L-shaped hook. The L-shaped hook is obliquely fixed on the bottom of the limiting baffle. The protective cover is inverted trapezoidal. A partition plate is fixed in the protective cover. The partition plate is provided with a through hole. The protective cover is sleeved on the L-shaped hook through the through hole and is arranged below the clamp, the limiting baffle and the clamping plate.

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